* what to use in threaded ISR routine in place of in_irq()
@ 2012-04-25 11:02 Priyanka Gupta Jain
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From: Priyanka Gupta Jain @ 2012-04-25 11:02 UTC (permalink / raw)
To: linux-rt-users
hi,
While running in one of ISR routine, we have a call to function x()
which makes a call to in_irq() to check if the function x() has been
called in ISR context or from some other process and do the processing
accordingly.
This scenario works fine in case of hard ISR.
But with PREEMPT_RT patch, ISR routine gets converted into threaded
ISR and now in function x(), we can not use in_irq() to distinguish
beween threaded isr or some other process context.
Is there any function in PREEMPT_RT kernel similar to in_irq(), which
I can use to check if running in threaded isr context or not
Regards
Priyanka
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2012-04-25 11:02 what to use in threaded ISR routine in place of in_irq() Priyanka Gupta Jain
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